| RefNo | HS/18/245 | 
| Level | Item | 
| Title | Letter, from Alexander Wight, Jr. to Sir John Herschel, dated at 6 Clarenden Terrace, Notting Hill | 
| Creator | Wight; Alexander Jr. (fl.1856-?) | 
| Recipient | John Frederick William Herschel | 
| Date | 28 March 1856 | 
| Description | Autograph letter signed by sender. New method for constructing circular lenses up to 10-feet diameter for £50. Focusing power sufficient to melt metals. Wants to send 3-inch sample to John Frederick William Herschel. | 
| Language | English | 
| Extent | 3pp | 
| Format | Manuscript | 
| Place origin | 6 Clarenden Terrace, Notting Hill | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| URLDescription | Also available on Epsilon | 
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel7978 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |